[DEV] add missing history plugin

sources/appl/Buffer/TextPluginHistory.cpp

@@ -0,0 +1,196 @@
+/**
+ * @author Edouard DUPIN
+ * 
+ * @copyright 2010, Edouard DUPIN, all right reserved
+ * 
+ * @license GPL v3 (see license file)
+ */
+
+
+#include <appl/Buffer/TextPluginHistory.h>
+#include <ewol/clipBoard.h>
+#include <appl/Gui/TextViewer.h>
+#include <appl/Buffer/TextPluginManager.h>
+
+#undef __class__
+#define __class__ "TextPluginHistory"
+
+appl::TextPluginHistory::TextPluginHistory(void) {
+	m_activateOnReceiveMessage = true;
+	m_activateOnWrite = true;
+	m_activateOnReplace = true;
+	m_activateOnRemove = true;
+}
+
+appl::TextPluginHistory::~TextPluginHistory(void) {
+	clearUndo();
+	clearRedo();
+};
+
+void appl::TextPluginHistory::onPluginEnable(appl::TextViewer& _textDrawer) {
+	// add event :
+	_textDrawer.registerMultiCast(ednMsgGuiRedo);
+	_textDrawer.registerMultiCast(ednMsgGuiUndo);
+	_textDrawer.shortCutAdd("ctrl+z", ednMsgGuiUndo);
+	_textDrawer.shortCutAdd("ctrl+shift+z", ednMsgGuiRedo);
+}
+
+void appl::TextPluginHistory::onPluginDisable(appl::TextViewer& _textDrawer) {
+	// TODO : unknow function ...
+}
+
+bool appl::TextPluginHistory::onReceiveMessage(appl::TextViewer& _textDrawer,
+                                               const ewol::EMessage& _msg) {
+	if (isEnable() == false) {
+		return false;
+	}
+	if (_msg.getMessage() == ednMsgGuiRedo) {
+		if (m_redo.size() == 0) {
+			return true;
+		}
+		if (m_redo[m_redo.size()-1] == NULL) {
+			m_redo.popBack();
+			return true;
+		}
+		appl::History *tmpElement = m_redo[m_redo.size()-1];
+		m_redo.popBack();
+		m_undo.pushBack(tmpElement);
+		_textDrawer.m_buffer->replace(tmpElement->m_addedText,
+		                              _textDrawer.m_buffer->position(tmpElement->m_posAdded),
+		                              _textDrawer.m_buffer->position(tmpElement->m_endPosRemoved) );
+		
+		return true;
+	} else if (_msg.getMessage() == ednMsgGuiUndo) {
+		if (m_undo.size() == 0) {
+			return true;
+		}
+		if (m_undo[m_undo.size()-1] == NULL) {
+			m_undo.popBack();
+			return true;
+		}
+		/*
+		if (m_history[m_positionHistory]->m_removedText.size() == 0) {
+			// just insert mode
+		} else if (m_history[m_positionHistory]->m_posAdded == m_history[m_positionHistory]->m_endPosAdded) {
+			// just remove mode
+			
+		} else {
+			// just replace mode
+			
+		}
+		*/
+		appl::History *tmpElement = m_undo[m_undo.size()-1];
+		m_undo.popBack();
+		m_redo.pushBack(tmpElement);
+		_textDrawer.m_buffer->replace(tmpElement->m_removedText,
+		                              _textDrawer.m_buffer->position(tmpElement->m_posAdded),
+		                              _textDrawer.m_buffer->position(tmpElement->m_endPosAdded) );
+		
+		return true;
+	}
+	return false;
+}
+
+void appl::TextPluginHistory::clearRedo(void) {
+	if (m_redo.size() == 0) {
+		return;
+	}
+	for (esize_t iii=0; iii<m_redo.size(); ++iii) {
+		if (m_redo[iii] == NULL) {
+			continue;
+		}
+		delete(m_redo[iii]);
+		m_redo[iii] = NULL;
+	}
+	m_redo.clear();
+}
+
+void appl::TextPluginHistory::clearUndo(void) {
+	if (m_undo.size() == 0) {
+		return;
+	}
+	for (esize_t iii=0; iii<m_undo.size(); ++iii) {
+		if (m_undo[iii] == NULL) {
+			continue;
+		}
+		delete(m_undo[iii]);
+		m_undo[iii] = NULL;
+	}
+	m_undo.clear();
+}
+
+
+bool appl::TextPluginHistory::onWrite(appl::TextViewer& _textDrawer,
+                                      const appl::Buffer::Iterator& _pos,
+                                      const etk::UString& _data) {
+	if (isEnable() == false) {
+		return false;
+	}
+	appl::History *tmpElement = new appl::History();
+	if (tmpElement != NULL) {
+		tmpElement->m_addedText = _data;
+		tmpElement->m_posAdded = (esize_t)_pos;
+		tmpElement->m_endPosRemoved = (esize_t)_pos;
+	}
+	_textDrawer.m_buffer->write(_data, _pos);
+	if (tmpElement != NULL) {
+		tmpElement->m_endPosAdded = (esize_t)_textDrawer.m_buffer->cursor();
+		clearRedo();
+		m_undo.pushBack(tmpElement);
+	}
+	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.m_buffer->cursor());
+	return true;
+}
+
+bool appl::TextPluginHistory::onReplace(appl::TextViewer& _textDrawer,
+                                        const appl::Buffer::Iterator& _pos,
+                                        const etk::UString& _data,
+                                        const appl::Buffer::Iterator& _posEnd) {
+	if (isEnable() == false) {
+		return false;
+	}
+	appl::History *tmpElement = new appl::History();
+	if (tmpElement != NULL) {
+		tmpElement->m_posAdded = (esize_t)_pos;
+		tmpElement->m_addedText = _data;
+		tmpElement->m_endPosRemoved = (esize_t)_posEnd;
+		_textDrawer.m_buffer->copy(tmpElement->m_removedText, _pos, _posEnd);
+	}
+	_textDrawer.m_buffer->replace(_data, _pos, _posEnd);
+	if (tmpElement != NULL) {
+		tmpElement->m_endPosAdded = (esize_t)_textDrawer.m_buffer->cursor();
+		clearRedo();
+		m_undo.pushBack(tmpElement);
+	}
+	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.m_buffer->cursor());
+	return true;
+}
+
+bool appl::TextPluginHistory::onRemove(appl::TextViewer& _textDrawer,
+                                       const appl::Buffer::Iterator& _pos,
+                                       const appl::Buffer::Iterator& _posEnd) {
+	if (isEnable() == false) {
+		return false;
+	}
+	appl::History *tmpElement = new appl::History();
+	if (tmpElement != NULL) {
+		tmpElement->m_addedText = "";
+		tmpElement->m_posAdded = (esize_t)_pos;
+		tmpElement->m_endPosAdded = tmpElement->m_posAdded;
+		tmpElement->m_endPosRemoved = (esize_t)_posEnd;
+		_textDrawer.m_buffer->copy(tmpElement->m_removedText, _pos, _posEnd);
+		clearRedo();
+		m_undo.pushBack(tmpElement);
+	}
+	_textDrawer.m_buffer->removeSelection();
+	appl::textPluginManager::onCursorMove(_textDrawer, _textDrawer.m_buffer->cursor());
+	return true;
+}
+
+
+void appl::TextPluginHistory::onObjectRemove(ewol::EObject* _removeObject) {
+	// TODO : Dependence with buffer removing ...
+}
+
+
+

sources/appl/Buffer/TextPluginHistory.h

@@ -0,0 +1,64 @@
+/**
+ * @author Edouard DUPIN
+ * 
+ * @copyright 2010, Edouard DUPIN, all right reserved
+ * 
+ * @license GPL v3 (see license file)
+ */
+
+#ifndef __APPL_TEXT_PLUGIN_HISTORY_H__
+#define __APPL_TEXT_PLUGIN_HISTORY_H__
+
+#include <etk/types.h>
+#include <ewol/renderer/EObject.h>
+#include <appl/Gui/TextViewer.h>
+#include <ewol/compositing/Text.h>
+#include <appl/Buffer/TextPlugin.h>
+
+namespace appl {
+	class History {
+		public:
+			History(void) :
+			  m_posAdded(0),
+			  m_endPosAdded(0),
+			  m_endPosRemoved(0) {
+				
+			};
+			etk::UString m_addedText;
+			etk::UString m_removedText;
+			esize_t m_posAdded;
+			esize_t m_endPosAdded;
+			esize_t m_endPosRemoved;
+	};
+	class TextPluginHistory : public appl::TextViewerPlugin {
+		public:
+			TextPluginHistory(void);
+			~TextPluginHistory(void);
+		private:
+			etk::Vector<History*> m_undo; //!< History storing data
+			etk::Vector<History*> m_redo; //!< History storing data
+		public:
+			virtual void onPluginEnable(appl::TextViewer& _textDrawer);
+			virtual void onPluginDisable(appl::TextViewer& _textDrawer);
+			virtual bool onReceiveMessage(appl::TextViewer& _textDrawer,
+			                              const ewol::EMessage& _msg);
+			virtual bool onWrite(appl::TextViewer& _textDrawer,
+			                     const appl::Buffer::Iterator& _pos,
+			                     const etk::UString& _data);
+			virtual bool onReplace(appl::TextViewer& _textDrawer,
+			                       const appl::Buffer::Iterator& _pos,
+			                       const etk::UString& _data,
+			                       const appl::Buffer::Iterator& _posEnd);
+			virtual bool onRemove(appl::TextViewer& _textDrawer,
+			                      const appl::Buffer::Iterator& _pos,
+			                      const appl::Buffer::Iterator& _posEnd);
+		private:
+			void clearRedo(void);
+			void clearUndo(void);
+		public:
+			virtual void onObjectRemove(ewol::EObject* _removeObject);
+	};
+};
+
+
+#endif